so that means my portable TV should be able to detect Singapore's
TV station, just that whether it is broadcast in PAL 60 (which i
will get colours) or PAL 50 (which i will get no colours) ???
i know that, for dvd players and game machines, this is the
case. Why dont u try out yr portable tv to find out. Most tvs made
in the last 20 years can receive pal, NTSC and secam unless yours
is manufactured in some cheap factory in China. check the manual to
see if there is an NTSC 433 or Pal 60 listed as supported standard.
And there is no way that ti know of to find out if singapore tv is
broadcasting in pal 60 . We only know its pal standard.
NTSC is normally only used at 60Hz and Pal at 50Hz. One of
the techniques used by multi-standard equipment is to take
NTSC material and transcode the signal into PAL. The frame
rate stays the same and the conversion from NTSC to PAL is
relatively simple to do. The output is a PAL signal at 60Hz, known
as PAL 60. Once the signal is output from the sender, it then
relies on the tv being able to operate at 60Hz. u may or not
receive a picture with colours, without colours or bleeding
inconsistent picture depending on the tv circuitry
.....applies to both analog and digital tv.
Today, the majority of equipment is capable of operating in both
PAL and NTSC at 50 or 60Hz so the PAL 60 technique is rarely
used.